Synthesis 2023; 55(03): 433-442
DOI: 10.1055/a-1966-3271
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A Neutral FeCl3 Photocatalysis for C–C Bond Animation and Alkylation of Cyclic Alcohols

Zongnan Zhang
a   School of Chemistry, Xi’an Jiaotong University, Xi’an 710049, P. R. of China
,
Ting Xue
a   School of Chemistry, Xi’an Jiaotong University, Xi’an 710049, P. R. of China
,
Zhe Han
b   School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, P. R. of China
,
Rong Zeng
a   School of Chemistry, Xi’an Jiaotong University, Xi’an 710049, P. R. of China
c   Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, Guangdong, P. R. of China
› Author Affiliations
The project described was supported by the National Natural Science Foundation of China (21901197) and Guangdong Provincial Key Laboratory of Catalysis (2020B121201002).


Abstract

A modified method for iron-catalyzed C–C bond cleavage and amination and alkylation of nonactivated cyclic alcohols has been developed. Using FeCl3 as catalyst, the photoinduced ligand-to-metal charge transfer facilitates the generation of O-radicals from alcohols, the subsequent β-scission, and finally the radical trapping. Compared with the Fe(OR)3 catalysis, this mildly base-free system could enable the amination in a broader substrate scope with higher yields. Moreover, the C–C bond cleavage and alkylation of cyclic alcohols proceeds with electron-deficient olefins under these conditions.

Supporting Information



Publication History

Received: 16 September 2022

Accepted after revision: 24 October 2022

Accepted Manuscript online:
24 October 2022

Article published online:
24 November 2022

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